Quick answers
How do I generate a random number between 1 and 100?
The defaults already do this: Min 1, Max 100, one number — just click Generate. Change the Min and Max fields for any other range, like 1–6 for a die roll or 1–1000 for a raffle ticket draw.
How do I pick random numbers without duplicates?
Uncheck "Allow duplicates." The tool then draws only unique numbers — handy for lottery-style picks or sampling. Note that the count can't exceed the size of the range (you can't draw 10 unique numbers from 1–5).
Are these numbers truly random?
Yes. The tool uses crypto.getRandomValues, your browser's cryptographically secure random source — the same kind of randomness used for security keys. Every number in the range has an equal chance on every draw.